You Will Need

Find the picture you want to have huge on your wall. For me, it was no contest - mmm, Amanda Palmer. I also deliberately chose a black and white picture because I gather it's easier to do it with that, especially if you don't have a great printer (like me).

Step 2

Go to
http://homokaasu.org/rasterbator/
and upload your image. You can choose to crop it and decide how many sheets you want it over. I decided to make mine 25 sheets, so 5x5 in portrait. Generally the bigger you make it the better it looks. The instructions on there are really good.

Step 3

Print off all your pages but make sure you keep them in order - they should work from left to right going down, as though each page were a word in a book (if that makes sense). So for me, it went
1, 2, 3, 4, 5
6, 7, 8, 9, 10
11, 12, 13, 14, 15
etc etc
And then cut off the borders (unless you were clever and removed them)

Step 4

While you're being very clever and keeping them in perfect order, stick them up on the wall as I said. A lot of people use wallpaper paste to get a permanent look, but as I'm in halls I just used white tack. Depends how permanent you want it.

Step 5

Step back and admire your work. Why not, take some pictures of yourself next to it! Here you can see the scale of it. It's pretty big =)